Meaning: It describes the enjoyable and vivid experiences that take place in one's mind while sleeping.
Choice of Words: "Dreams" are thoughts, images, or emotions that occur during sleep. "Danced" means to move rhythmically to music or an internal rhythm. "Sweetly" suggests something pleasant or delightful. "In" indicates a location or position. "Slumber" refers to a state of deep sleep. This sentence portrays the pleasant and imaginative experiences that occur during sleep.